This isn't your average mattress. It's a supportive sleep haven designed with your child's growth and comfort in mind, crafted right here in the USA. A medium-firm feel with exclusive memory foams provides the ideal balance of support and pressure relief for growing bodies.The 1.5" adaptive foam layer conforms to their shape, while the 3.5" base offers lasting support.This mattress arrives conveniently compressed in a box, ready to be set up in minutes.The removable, washable polyester knit protector makes keeping allergens and spills at bay a breeze.